Contents

• Introduction
• Erosion processes
• Methods and data
• Suitability
• Assessment
• Spatial analysis
• Bluff erosion
• Obsolescence
• Conclusions
• References

FIRMs in York, Cumberland, and Sagadahoc Counties most likely to be obsolete or become outdated by shoreline change

The table below identifies the communities and panels that are most out of date in York, Cumberland, and Sagadahoc Counties based on shoreline change rates and the number of years that have passed since the maps were made.

Community	Panel	Community Name	County	FIRM Date	Age	Erosion Rate (ft/yr)	Shoreline (ft)
230145	5	Biddeford, City of	York	5/15/1984	19	3	57.0
230145	6	Biddeford, City of	York	5/15/1984	19	-2	-38.0
230052	23	Scarborough, Town of	Cumberland	4/2/1992	11	3	33.0
230120	12	Phippsburg, Town of	Sagadahoc	7/15/1992	11	-2	-22.0
230052	22	Scarborough, Town of	Cumberland	4/2/1992	11	-2	-22.0
230170	7	Kennebunkport, Town of	York	4/18/1983	20	-1	-20.0
230170	8	Kennebunkport, Town of	York	4/18/1983	20	-1	-20.0
230145	11	Biddeford, City of	York	5/15/1984	19	-1	-19.0
230153	3	Old Orchard Beach, Town of	York	7/5/1984	19	1	19.0
230053	9	South Portland, City of	Cumberland	4/17/1985	18	-1	-18.0
230171	3	Kittery, Town of	York	7/3/1986	17	-1	-17.0
230171	6	Kittery, Town of	York	7/3/1986	17	-1	-17.0
230043	3	Cape Elizabeth, Town of	Cumberland	7/15/1992	11	-1	-11.0
230043	11	Cape Elizabeth, Town of	Cumberland	7/15/1992	11	-1	-11.0
230162	21	Cumberland, Town of	Cumberland	7/15/1992	11	-1	-11.0
230162	23	Cumberland, Town of	Cumberland	7/15/1992	11	-1	-11.0
230201	9	Georgetown, Town of	Sagadahoc	7/15/1992	11	-1	-11.0
230151	14	Kennebunk, Town of	York	7/15/1992	11	-1	-11.0
230151	15	Kennebunk, Town of	York	7/15/1992	11	-1	-11.0
230632	3	Ogunquit, Town of	York	7/15/1992	11	-1	-11.0
230120	11	Phippsburg, Town of	Sagadahoc	7/15/1992	11	-1	-11.0
230052	24	Scarborough, Town of	Cumberland	4/2/1992	11	1	11.0
230170	3	Kennebunkport, Town of	York	4/18/1983	20	-0.5	-10.0
230155	29	Saco, City of	York	3/16/1998	5	-2	-10.0
230170	6	Kennebunkport, Town of	York	7/4/1988	15	-0.5	-7.5
230043	12	Cape Elizabeth, Town of	Cumberland	7/15/1992	11	-0.5	-5.5
230043	16	Cape Elizabeth, Town of	Cumberland	7/15/1992	11	-0.5	-5.5
230201	6	Georgetown, Town of	Sagadahoc	7/15/1992	11	-0.5	-5.5
230201	7	Georgetown, Town of	Sagadahoc	7/15/1992	11	-0.5	-5.5
230169	13	Harpswell, Town of	Cumberland	7/20/1998	5	-1	-5.0
230169	14	Harpswell, Town of	Cumberland	7/20/1998	5	-1	-5.0
230051	8	Portland, City of	Cumberland	12/8/1998	5	-1	-5.0
230155	27	Saco, City of	York	3/16/1998	5	-1	-5.0
230051	3	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	4	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	5	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	9	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	10	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	15	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230051	17	Portland, City of	Cumberland	12/8/1998	5	-0.5	-2.5
230159	13	York, Town of	York	6/17/2002	1	-1	-1.0
230159	24	York, Town of	York	6/17/2002	1	-1	-1.0
230159	26	York, Town of	York	6/17/2002	1	-1	-1.0
230159	28	York, Town of	York	6/17/2002	1	-1	-1.0
230159	32	York, Town of	York	6/17/2002	1	-1	-1.0
230145	1	Biddeford, City of	York	5/15/1984	19	0	0.0
230153	4	Old Orchard Beach, Town of	York	7/5/1984	19	0	0.0
230051	11	Portland, City of	Cumberland	12/8/1998	5	0	0.0
230051	14	Portland, City of	Cumberland	12/8/1998	5	0	0.0
230051	16	Portland, City of	Cumberland	12/8/1998	5	0	0.0
230158	13	Wells, Town of	York	1/16/2003	0	-1	0.0
230158	21	Wells, Town of	York	1/16/2003	0	-1	0.0
230158	23	Wells, Town of	York	1/16/2003	0	-1	0.0

Based on the quantitative analysis, on past trends, a knowledge of the sand budget, human activities that have and will likely occur in these communities, and degree of coastal development, the communities need remapping first are ranked by priority in the table below. The first 4 municipalities stand out as most in need of map modernization. These are:

Rank	Municipality	County
1	City of Biddeford	York
2	Town of Scarborough	Cumberland
3	Town of Kennebunkport	York
4	City of South Portland	Cumberland
5	Town of Old Orchard Beach	York
6	Town of Phippsburg	Sagadahoc
7	Town of Kennebunk	York
8	Town of Ogunquit	York
9	Town of Georgetown	Sagadahoc
10	Town of Kittery	York
11	City of Saco	York
12	Town of Cape Elizabeth	Cumberland
13	Town of Harpswell	Cumberland
14	City of Portland	Cumberland
15	Town of York	York
16	Town of Cumberland	Cumberland

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Introduction   Erosion processes   Methods and data   Suitability   Assessment   Spatial analysis   Bluff erosion   Obsolescence   Conclusions   References

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Last updated on February 8, 2006.

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